a-a a-b a-c aaa aab aac aag aan aao aas ab- aba abb abc abg abn abo abs ac- aca acb acc acg acn aco acs ag- aga agb agc agg agn ago ags an- ana anb anc ang ann ano ans aoa aob aoc aog aon aoo aos as- asa asb asc asg asn aso ass baa bab bac bag ban bao bas bba bbb bbc bbg bbn bbo bbs bca bcb bcc bcg bcn bco bcs bga bgb bgc bgg bgn bgo bgs bna bnb bnc bng bnn bno bns boa bob boc bog bon boo bos bsa bsb bsc bsg bsn bso bss c-- caa cab cac cag can cao cas cba cbb cbc cbg cbn cbo cbs cca ccb ccc ccg ccn cco ccs cga cgb cgc cgg cgn cgo cgs cn- cna cnb cnc cng cnn cno cns co- coa cob coc cog con coo cos csa csb csc csg csn cso css gaa gab gac gag gan gao gas gba gbc gbg gbn gbo gbs gca gcb gcc gcg gcn gco gcs gga ggb ggc ggg ggn ggo ggs gna gnb gnc gnn gno gns goa gob goc gog gon goo gos gsa gsb gsc gsg gsn gso gss naa nab nac nag nan nao nas nba nbb nbc nbg nbn nbo nbs nca ncb ncc ncg ncn nco ncs nga ngb ngc ngg ngn ngo ngs nna nnb nnc nng nnn nno nns no- noa nob noc nog non noo nos nsa nsb nsc nsg nsn nso nss oaa oab oac oag oan oao oas ob- oba obb obc obg obn obo obs oc- oca ocb occ ocg ocn oco ocs oga ogc ogg ogn ogo ogs on- ona onb onc ong onn ono ons oo- ooa oob ooc oog oon ooo oos os- osa osb osc osg osn oso oss saa sab sac sag san sao sas sba sbb sbc sbg sbn sbo sbs sca scb scc scg scn sco scs sga sgb sgc sgg sgn sgo sgs sna snb snc sng snn sno sns soa sob soc sog son soo sos ss- ssa ssb ssc ssg ssn sso sss

-ana aaaa aaab aaac aaan aaas aaba aabb aabc aaca aacb aacc aacn aaco aacs aana aang aaon aaoo aasa aasc aass abaa abab abac abag aban abas abb- abba abbb abbo abbs abca abcb abcc abcn abcs aboa abob abon aboo abos abs- absa abss acaa acab acac acag acan acas acba acca accc acco accs acga acgs acoa acog acon acos acsa acsc acss ag-o agac agag agan agao agas agba agbo agca agcc agco agga agna agno agns agob agog agon agoo agos agsa agsg ana- anaa anab anac anag anan anao anas anba anbb anbo anca ancc anco ang- anga ango angs anna annb anno anns ano- anoa anon anos ansa anso aoba aoca aocs aonb aono aoss asaa asab asac asag asan asao asas asba asbo asc- asca ascb ascc asco asnc asno asob asoc asog ason asos assa assc assn asso asss baaa baan baas baba babb babo babs bac- baca bacc bacn baco bacs baga bagg bagn bago bags bana banc bang bann bano bans baon baos basa basc baso bass bbas bbbb bbbs bbga bbng bcaa bcas bcbc bcbg bcbs bcca bccc bccs bcgs bcos bcsa bcsc bcsn bcss bgan bgca bggs bgon bnas bnoc bnss boab boac boag boan boas boba bobb bobo bobs boca boco bocs boga bogg bogo bogs bona bonc bong bonn bono bons boob booc boog boon boos bosa bosc bosn boso boss bsaa bsac bsas bscs bsgs bsns bson bsos bssc c-bo caaa caab caac caan caas caba cabg cabo cabs cac- caca cacc caco caga cagg cagn cago cags cana canc cang cann cano cans caos casa casb casc caso cass cbac cbbc cbbs cbca cbcc cbcn cbcs cbga cbgb cbna cbsa cbsc cbsn ccaa ccab ccac ccag ccas ccba ccbc ccbn ccca cccb cccc cccs ccga ccgc ccgs ccna ccnb ccnc ccns ccob ccoc ccsa ccsg ccsn ccss cgac cgas cgcc cgcg cggs cgns cgsb cgss cnaa cnac cnag cnas cnbc cnco cnna cnsa cnss coag coan coas coba cobb cobo cobs coca coco cogo cogs con- cona conc cong conn cono cons coob coon coos cosa cosc coso coss csaa csab csac csao csas cscb cscc csco cscs csgn csob csos cssa gaas gaba gabb gabo gabs gaga gagg gago gags gana ganc gang gann gano gans gaon gaos gasa gasb gasc gaso gass gbag gban gbas gbbo gbbs gbon gc-c gcaa gcbc gccc gccs gcna gcoa gcos gcss gggg ggss gnaa gnac gnas gncc gngc gnoo goan goas goba gobo gobs goca goga gogo gogs gon- gona gong gonn gono gons goog goon goos goso goss gsab gsoc gson gsos naaa naab naac naag naan naas naba nabc nabo nabs naca nacc naco nacs naga nagc nago nags nan- nana nanb nang nann nano nans naoc naos nas- nasa nasb nasc naso nass nbaa nbas nbbc nbbo nbca nbcc nbco nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncga ncgs ncna ncnc ncoa ncoc ncos ncsa ncsc ncss ngab ngac ngan ngao ngas ngns ngon ngos ngsn nngn nnnn nnos nnsa nnss noaa noac noba nobc nobo nobs noco nocs noga nogg nogo nogs non- nona nong nonn nono nons noo- noob noon nooo noos nos- nosa noss nsaa nsac nsbo nsca nscc nscs nsna nsos nssa nssb nssc nsso nsss oasc oass oban obas obba obbo obon obos obsn obss ocab ocac ocan ocas ocbc occa occc occn ocga ocna ocon ocos ocsa ogb ogba ogna ogoa ogog ogon onab onan onas onc- onca onco onga ongo onna onno onon onos onsc onso ooaa ooba oona oons oooo ooos oosa osag osan osas osba osca oscc osco osno osoo osos ossa ossb osso s-os sa-c saab saac saag saan saas saba sabb sabc sabo sabs saca sacc sacn saco sacs saga sagg sago sags sana sang sann sano sans saon saos